V-256 Sagoska

V-256 Sagoska
File:Dnieguan Army Sagoska-2.jpg
A Dnieguan Army Aviation V-256 in fligt, 1986
Role	Attack helicopter
National origin	Dniegua
Manufacturer	Yevnir Aviation
First flight	21 September 1978
Introduction	6 November 1984
Status	In service
Number built	1,200
Unit cost	$16,500,000

The V-256 Sagoska is a Dnieguan hybrid attack helicopter designed and produced by Mykroft Vertol of Dniegua. The V-256 program rose from the Dnieguan Advanced Areal firesupport (AAFS) program to produce a dedicated fast attack helicopter. Mykroft designed the helicopter using a hybrid system, mating a four-blade rigid-rotor configured to the aircraft as a compound helicopter with a tail-mounted three-blade thrusting propeller. It also featured low-mounted wings, and a single Borzov propulsion RTM-64E turboshaft engine. The V-256 has high speed dash capabilities to act as escort and airsupport for other rotor wing assets, but quickly became the primary attack helicopter of the Dnieguan Armed Forces.

Specifications

General characteristics

• Crew: Two; one pilot, one copilot/gunner (front seat)
• Length: 54 ft 8 in (16.66 m)
• Rotor diameter: 51 ft 3 in (15.62 m)
• Height: 13 ft 8.5 in (4.18 m)
• Empty weight: 12,215 lb (5,540 kg)
• Loaded weight: 18,300 lb (8,300 kg)
• Max. takeoff weight: 25,880 lb (11,740 kg)
• Rotor systems: 4 blades on main rotor, 4 blades on tail rotor, 3 blades on pusher propeller
• Powerplant: 1 × RTM-64 turboshaft, 3,925 shp (2,930 kW)

Performance

• Maximum speed: 212 knots (244 mph, 393 km/h)
• Cruise speed: 195 knots (225 mph, 362 km/h)
• Range: 1,063 nmi (1,225 mi, 1,971 km)
• Service ceiling: 20,000 ft (6,100 m)
• Rate of climb: 3,000 ft/min (15.23 m/s)

Armament

• Guns:
  
• 1 × nose turret with either
  • 1 x 40mm Grenade launcer
  • 1 x 6.5mm Machine Gun
• 1 × belly turret with either
  • 1 x 30mm Cannon
  • 1 x 37mm Cannon or
  • 1 x 26mm Cannon
• Hardpoints: 6
• Rockets: 70, 88, or 107mm Rockets
• Missiles: Up to 12 ATGMs